From e1f154780b5b004e047977b6582dd19bf85d4e4d Mon Sep 17 00:00:00 2001
From: Calin-Andrei Burloiu <calin.burloiu@gmail.com>
Date: Fri, 11 Nov 2011 17:00:57 +0200
Subject: [PATCH] a simple MediaInfo API implemented as a helper in CodeIgniter
 useful for verifying if an uploaded video is valid

---
 .gitignore                             |   1 +
 application/controllers/catalog.php    |  10 +--
 application/helpers/av_info_helper.php | 105 +++++++++++++++++++++++++
 application/models/users_model.php     |   2 +-
 nbproject/private/private.properties   |   1 +
 scripts/{sync.sh => sync_devel.sh}     |   0
 scripts/sync_prod.sh                   |   3 +
 7 files changed, 114 insertions(+), 8 deletions(-)
 create mode 100644 application/helpers/av_info_helper.php
 rename scripts/{sync.sh => sync_devel.sh} (100%)
 create mode 100755 scripts/sync_prod.sh

diff --git a/.gitignore b/.gitignore
index d06e4c1..b7df4ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,3 +32,4 @@ application/logs/*.php
 data/thumbs/*
 data/torrents/*
 data/user_pictures/*
+data/media/*
diff --git a/application/controllers/catalog.php b/application/controllers/catalog.php
index da3548a..31bdc51 100644
--- a/application/controllers/catalog.php
+++ b/application/controllers/catalog.php
@@ -71,13 +71,9 @@ class Catalog extends CI_Controller {
 
 	public function test()
 	{
-		$data['email'] = 'CA-LăIN$*(_3@GMAIL.COM';
-		$data['email'] = strtolower($data['email']);
-		$data['username'] = substr($data['email'],
-				0, strpos($data['email'], '@'));
-		$data['username'] = preg_replace(array('/[^a-z0-9\._]*/'),
-				array(''), $data['username']);
-		echo $data['username'];
+		$this->load->helper('av_info');
+		
+		var_dump(get_video_dar('./data/media/test.ogv'));
 	}
 
 	public function category($category_name, $ordering = 'hottest', $offset = 0)
diff --git a/application/helpers/av_info_helper.php b/application/helpers/av_info_helper.php
new file mode 100644
index 0000000..013dab3
--- /dev/null
+++ b/application/helpers/av_info_helper.php
@@ -0,0 +1,105 @@
+<?php
+
+/*
+ * These functions retrieve information about audio and video files.
+ * Depends on MediaInfo CLI program (http://mediainfo.sourceforge.net/)
+ * 
+ * @author Călin-Andrei Burloiu
+ */
+
+/**
+ *
+ * @param string $params mediainfo parameters, including the input file name
+ * passed as in shell
+ * @return string mediainfo standard output
+ */
+function exec_mediainfo($params)
+{
+	// If file does not exist it exists with code 1. If file is not a valid
+	// audio/video file it exists with code 0 and outputs nothing.
+	$h = popen('mediainfo ' . $params . ' 2>&1', 'r');
+
+	$r = fgets($h, 512);
+	$r = trim($r);
+	
+	if (pclose($h) > 0 || empty($r))
+		return FALSE;
+	
+	return $r;
+}
+
+/**
+ * Returns duration in hours, minutes and seconds for an audio/video file.
+ *
+ * @param string $file_name 
+ * @return array an associative array with keys 'h', 'min', 's'
+ */
+function get_av_duration($file_name)
+{
+	$output = exec_mediainfo(
+			'--Inform="General;%Duration/String3%" "'. $file_name. '"');
+	
+	if (!$output)
+		return FALSE;
+	
+	$toks = explode(':', $output);
+	$res['h'] = intval($toks[0]);
+	$res['min'] = intval($toks[1]);
+	$res['s'] = floatval($toks[2]);
+	
+	return $res;
+}
+
+/**
+ * Returns video width size in pixels.
+ * 
+ * @param string $file_name
+ * @return int
+ */
+function get_video_width($file_name)
+{
+	$output = exec_mediainfo(
+			'--Inform="Video;%Width%" "'. $file_name. '"');
+	
+	if (!$output)
+		return FALSE;
+	
+	return intval($output);
+}
+
+/**
+ * Returns video height size in pixels.
+ * 
+ * @param string $file_name
+ * @return int
+ */
+function get_video_height($file_name)
+{
+	$output = exec_mediainfo(
+			'--Inform="Video;%Height%" "'. $file_name. '"');
+	
+	if (!$output)
+		return FALSE;
+	
+	return intval($output);
+}
+
+/**
+ * Returns Display Aspect Ration (DAR) of a video.
+ * 
+ * @param string $file_name
+ * @return string a ratio represented a two integers separated by a colon
+ */
+function get_video_dar($file_name)
+{
+	$output = exec_mediainfo(
+			'--Inform="Video;%DisplayAspectRatio/String%" "'. $file_name. '"');
+	
+	if (!$output)
+		return FALSE;
+	
+	return $output;
+}
+
+/* End of file av_info_helper.php */
+/* Location: ./application/helpers/av_info_helper.php */
\ No newline at end of file
diff --git a/application/models/users_model.php b/application/models/users_model.php
index 85ad649..30e18d7 100644
--- a/application/models/users_model.php
+++ b/application/models/users_model.php
@@ -4,7 +4,7 @@
  * Class Users_model models user information from DB
  * 
  * @category 	Model
- * @author 		calinburloiu
+ * @author 		Călin-Andrei Burloiu
  *
  */
 class Users_model extends CI_Model {
diff --git a/nbproject/private/private.properties b/nbproject/private/private.properties
index d3cda86..104ba6a 100644
--- a/nbproject/private/private.properties
+++ b/nbproject/private/private.properties
@@ -1,5 +1,6 @@
 copy.src.files=false
 copy.src.target=/var/www/P2P-Tube
+getter.setter.method.name.generation=AS_JAVA
 index.file=index.php
 run.as=LOCAL
 url=http://localhost/devel/
diff --git a/scripts/sync.sh b/scripts/sync_devel.sh
similarity index 100%
rename from scripts/sync.sh
rename to scripts/sync_devel.sh
diff --git a/scripts/sync_prod.sh b/scripts/sync_prod.sh
new file mode 100755
index 0000000..a3151a6
--- /dev/null
+++ b/scripts/sync_prod.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+rsync -avz ../ p2p-next@koala.cs.pub.ro:public_html/
-- 
2.20.1